10 Best Bass Distortion Pedals 2025 in the United States

The Darkglass Microtubes B7K Ultra V2 is a versatile bass preamp pedal that combines distortion, EQ, and overdrive in one compact unit. It’s designed for bass players who want a wide range of tone-shaping options. With a 4-band active EQ, you get precise control over bass, low mids, high mids, and treble, allowing you to dial in your perfect sound. The gain range is flexible, and the Grunt switch adds extra low-end boost to make your tone thicker and more powerful.

One standout feature is the balanced XLR output with switchable cabinet simulation, which is great for direct recording or live use without needing extra gear. The pedal also supports loading custom cabinet impulse responses via USB, giving you even more sonic variety. The aux input and headphone output with cab sim make it convenient for practicing quietly with your own music. It uses a 10V power supply and weighs about 1.5 pounds, making it sturdy but still pedalboard-friendly.

The pedal’s analog signal path ensures warm, natural tones, and the blend control helps balance clean and overdriven signals nicely. The Micro-USB connection may feel a bit outdated compared to modern USB-C, and the pedal might have a learning curve for beginners because of its many features. It is somewhat pricey, which might be a consideration for players just starting out. Nonetheless, players looking for a premium, feature-rich bass distortion pedal with excellent tone control and recording options will find the B7K Ultra V2 an excellent choice.

The Darkglass Microtubes Infinity is a compact and versatile bass distortion pedal that also acts as a preamp, compressor, and audio interface. It offers a rich distortion with multiple tonal shaping options, including six touch-sensitive EQ sliders and a 6-band graphic EQ for precise control over your sound. Its gain range is broad, giving you everything from subtle grit to heavy distortion, suitable for a variety of bass styles. The pedal uses analog signal processing and features a true bypass, which means it won’t affect your tone when switched off. Powering the unit requires a standard 9V DC supply, which is common and easy to find.

The build quality is solid yet lightweight, making it easy to carry and fit on your pedalboard without taking up much space. Additional features like a built-in tuner, compressor with five ratios, and Bluetooth and USB connectivity for recording or practicing add extra value, especially for players who want to streamline their setup.

While the many features and controls might feel overwhelming for those who prefer a simple plug-and-play pedal, and its price and complexity might exceed the needs of casual players, bassists seeking a flexible distortion pedal that doubles as a preamp and recording tool will find the Microtubes Infinity to be a well-rounded option with excellent sound shaping and reliable build.

The Darkglass Alpha-Omega Photon is a versatile bass distortion and compression pedal tailored for bass players seeking a wide range of tones. It offers five distinct distortion modes and five compression settings, allowing you to shape your sound from subtle grit to aggressive distortion easily. The built-in 6-band graphic EQ provides detailed control over your tone, helping you dial in your preferred sound precisely.

It uses a classic 9V power supply and has a sturdy metal build, making it reliable for both studio and stage use. The pedal includes modern features like a USB-C interface and MIDI input, allowing for greater control and integration with digital setups — a bonus if you like tweaking your sound via software or syncing effects with other gear. At about 2.2 pounds and relatively compact, it’s portable but not the smallest pedal out there.

While it’s a bit pricier than basic distortion pedals, it suits bassists who want advanced tone-shaping tools and compression in one device. If you’re looking for a straightforward, simple pedal with fewer options, there might be easier choices, but this pedal stands out for its flexibility and professional features.